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WorksheetsPower Electronics
Total questions: 12
Worksheet time: 9mins
Choose the correct statement:
MOSFET is an uncontrolled device
MOSFET is an voltage controlled device
MOSFET is a current controlled device
MOSFET is a temperature controlled device
Which of the following terminals does NOT belong to a MOSFET.
Base
Gate
Source
Drain
The turn on delay in MOSFET is due to:
Input inductance to charge to threshold value
Input capacitance to charge to threshold value
Input inductance to discharge to threshold value
Input capacitance to discharge to threshold value
SCR is a:
PNP device
NPN device
PN device
PNPN device
An SCR is a:
four layer-three junction device
three layer-two junction device
four layer-four junction device
three layer-three junction device
TRIAC can be represented by:
Two SCRs in anti-parallel
Two SCRs in parallel
Two diodes in anti-parallel
Two diodes in parallel
A DIAC can be represented by:
Two diodes in anti-parallel
Two diodes in parallel
Two SCRs in anti-parallel
Two SCRs in parallel
The terminals of a TRIAC are:
MT!, MT2 and gate
Anode, cathode and gate
The arrow on the symbol of MOSFET indicates:
that it is an n- MOSFET
that it is a p- MOSFET
the direction of flow of electrons
the direction of flow of holes
MOSFET is:
unipolar, voltage controlled two terminal device
unipolar, voltage controlled, three terminal device
bipolar, voltage controlled two terminal device
bipolar, voltage controlled, three terminal device
Which among the following is suited for high frequency applications:
MOSFET
JFET
SCR
TRIAC
JFET has high input impedance because
the input region is reverse biased
the input region is heavily doped
